TI UCD7100PWP

The UCD7100 device is a digitally controlled compatible UCD7K series driver designed for applications using digital control technology that require fast local peak current limiting protection. The UCD7100 is a ±4A low-side high-current MOSFET gate driver that supports digital power controllers such as the UCD9110 or UCD9501 to connect the power stage in single-ended topologies. It provides cycle-by-cycle current limiting with a programmable threshold and a digital output current limit flag that can be monitored by the host controller. With 25ns fast cycle-by-cycle current limiting protection, the driver can shut down the power stage in the event that the digital system cannot respond to a fault in time. To achieve fast switching speeds, the UCD7100 output stage uses the TrueDrive™ output architecture, which delivers ±4A rated current to the MOSFET gate during the Miller plateau of switching transitions. It also includes a 3.3V, 10mA linear regulator to power the digital controller. The UCD7000 driver family is compatible with standard 3.3V I/O ports of DSPs, microcontrollers, or ASICs. The UCD7100 is available in a PowerPAD™ HTSSOP-14 package.

• Adjustable current limit protection
• 3.3V, 10mA internal voltage regulator
• DSP/μC-compatible inputs
• Single ±4A TrueDrive™ high-current driver
• 10ns typical rise and fall times with 2.2nF load
• 25ns input-to-output propagation delay
• 25ns current sense-to-output delay
• Programmable current limit threshold
• Digital output current limit flag
• 4.5V to 15V supply voltage range
• Rated temperature –40°C to 105°C
• Lead-free package

• Digitally controlled power supplies
• DC/DC converters
• Motor controllers
• Line drivers